175cc Big Bore Kit - 62mm Piston/Cylinder GY6

There just ain't no replacement for displacement! Turn your GY6 into a 175cc screamer!

Installation requires crankcase to be split and professionally machined. We offer send-in case machining services, click here!

See our other replacement and big bore kits:

• Full 150cc Rebuild kit
• 155cc big bore kit.
• 175cc big bore kit.
• 180cc Power Pack (Pre-machined)